At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155